CESIA. 391 



calyptra. Base of tlie younjs: fruit immersed in the hollow apex 

 of the stem. Capsule globose, 4-valved, wlieii empty reflexed. 

 Elaters bispiral, caducous. AndnL'cia distinct. Antheridia oval, 

 stipitate, seated in the axils of the perigonial bracts. 



Section 1. IIOMOCRASPIS, Lhulb. 



S. 0. Lindberg, ]«8G, Schili". Engl. & Prantl, Pilanzenf. Dl k 1)2 Lief. p. 77 

 (1S;)3). 



Habit similar to Marst/jjcJla, but diflers usually in the absence 

 of a true perianth. 



1. Cesia alpina [Gotlsc/i.), Lliidh. 



Sarcoscyphus alpinus, Gottsch. in G. & R. Hep. Eur. n. 585 (1872). 

 Cesia alpina, Lindb. in Meddel. soc. F. Fl. Fenn. 13, p. 251 (188G). 



Dioicous, broadly caBspitose, small, dark olive-green to reddish- 

 brown, through transmitted light of a golden-brown colour. 

 Stems creeping or suberect, simple or innovantly fastigiate, 10-12 

 cells in diameter; 2, 3 outer layers brownish-yellow, inner hyaline; 

 radiculose, rootlets very short, white, or with a slight purplish 

 tinge. Leaves loosely inserted, alternate or regularly pectinate, 

 patent-divergent to patent (80^ - 40*^), somewhat distant, near 

 apex imbricate, subiunplexicaul, decurrent at the base, ovate, 

 cordate-ovate, cordate-orbicular, emarginate to \ or \, lobes 

 obtuse or obtusate, slightly unequal, sinus obtuse ; texture firm, 

 epidermis polished, cells small, hexagonal, containing 2 or 3 

 nucleate granules, walls thick, angles thickened, no trigones. No 

 stipules. Bracts ovate-cordate, emarginate from 1 to \ deep, 

 segments and sinus obtusate ; sometimes there is present an ovate 

 lanceolate bracteole connate with the bracts. Perianth delicate, 

 adnate with the bracts at the lower half or free, trilobate, margin 

 irregular. Pistillidia about 10. Spores seen through transmitted 

 light pale brown. Elaters bispiral, short, 4-G turns of the spiral, 

 dark brown. Andrcecia terminal, crowded, 3-4 pairs of bracts, 



